I have used the Aquatica +10 and +5 and found them to be quite good. (FYI I also own and use the Subsee +10) Subsee has an excellent reputation but there are other options, as mentioned above. UCL/FIT are also quite good. IMHO you really have to do serious pixel peeping to see a difference.

SubSee are out of Stock on their Diopters. I have a trip to Indonesia before they are in Stock again.

I would like to add a +10 for the trip. ( I have the +5. )

Aquatica does a +10 Diopter that looks good as well. Is the optical quality up to the same standard as the SubSeas?

Any experience with it?

/Erik

Hi Erik, there is this Chap Matti, who has been shooting with them since they come out, his website is http://mattiovaska.com/gallery , you might to get in touch with him for feedback, Mauricio Handler also uses them, so you can get in touch with him as well. They are double elements, are air sealed and coated and have a 67mm thread on them and like Steward say, you can check Tim Rock, he is a long standing member of this forums, he has quite a bit of images taken with those as well.

Correct me if I'm wrong, but since the Aquatica has the 67mm threads, they should work on the Subsee adapter to swing in and out. Although I have not tried it. If a member can chime in at had tried this combo, I would sure like to know.